In Subsection REF , we discuss motivating applications of ex ante and ex post constraints, including limited attention, as well as privacy protection in online ad auctions. [1]}, [2]} study persuasion with limited attention – see Subsection REF  for details. [3]} study ex ante and ex post privacy constraints in the design of auctions rather than persuasion schemes. [4]} studies the economic implications of online consumer privacy; in his model, the consumer, rather than the seller, plays the role of Sender. It is important to note that the differential privacy paradigm [5]} does not apply to privacy protection in online ad auctions: the state of nature about which information is revealed represents characteristics of an individual rather than statistics of a large population, and it is inherent to ad personalization that these characteristics influence the outcome in a non-negligible way.
